Improvement in bolts



UNITED STATES PATENT GEEICE.

EDWARD M. JUDD, OF NEW HAVEN, CONNECTICUT.

IMPROVEMENT IN BOLTS.

To all whom it may concern:

Be it known that I, EDWARD M. JUDD, of New Haven, iu the State ot'Connecticut, have invented an Improvement in Foot-Bolts, of which thefollowing is a specification:

Bolts have been made for the bottoms o't' doors to be Voperated by thefoot in pressing the bolt down to place, and in some instances a catchhas been liberated by the foot so as to allow a spring to throw the boltup.

The nature of my said invention consists in a dog connected with theupper end ot' the bolt by a rib and groove, and provided with a notch totake a rib upon the case, and with a footpiece at the upper end. Aspring forces the notch of the dog over the rib -to hold the bolt whenpressed down, and a spring throws the bolt up when the dog is liberated.

In the drawing, Figure l is a vertical section ot' the bolt, and Fig. 2is an elevation with the back plate removed.

The case a is made with the anges b for the z ittachingserews, and theremovable back plate d is secured by the screw. c. The bolt f is madetoslide within the case, and it is formed 'with a skeleton shank thatreceives the spring h, acting against the fixed guide'- stud lr, andserving to raise and sustain the bolt when not otherwise acted upon. Theupper end of' the bolt is connected by a groove and rib, t, with the dogl, that slides through the upper end ofthe bolt-case and terminates withthe foot-piece m. A spring, n, serves to throw the dog l against the rib0that is, at the upper and inner edge of the bolt-case c and there is agroove, o, across the dog l, just below the foot-piece m, so that whenthe foot` piece m, dog l, and bolt j' are forced down the spring nthrows the dog forward, the rib 0 enters the groove fu, and the bolt issecurely retained in position. When the foot-piece m is pushed back thedog l is released by separating o c, and the spring h throws up the boltand the dog.

The parts of this bolt are strong, easily made, and not liable either toget out of order or to be disconnected by shaking the door.

' I claim as my invention- The dog Z, with the groove c below thefootpiece m, in combination with the spring-bolt fh, case a, and springn, substantially' as and for the purposes set forth.

Signed by me this 16th day ot' December, A. D. 1872.

E. M. JUDD.

Witnesses:

JULIUs TRUss, J. A. WEED.

